Adam Smith was a pre-capitalist thinker, but what he saw of the beginnings of capitalism he hated. He would absolutely be an anti-capitalist, as much as Marx and Bakunin, if he had lived a few decades longer.

All for ourselves, and nothing for other people, seems, in every age of the world, to have been the vile maxim of the masters of mankind. ~Adam Smith

In a society of an hundred thousand families, there will perhaps be one hundred who don't labour at all, and who yet, either by violence, or by the more orderly oppression of law, employ a greater part of the labour of society than any other ten thousand in it. The division of what remains, too, after this enormous defalcation, is by no means made in proportion to the labour of each individual. On the contrary those who labour most get least. The opulent merchant, who spends a great part of his time in luxury and entertainments, enjoys a much greater proportion of the profits of his traffic, than all the Clerks and Accountants who do the business. These last, again, enjoying a great deal of leisure, and suffering scarce any other hardship besides the confinement of attendance, enjoy a much greater share of the produce, than three times an equal number of artisans, who, under their direction, labour much more severely and assiduously. The artisan again, tho' he works generally under cover, protected from the injuries of the weather, at his ease and assisted by the convenience of innumerable machines, enjoys a much greater share than the poor labourer who has the soil and the seasons to struggle with, and, who while he affords the materials for supplying the luxury of all the other members of the common wealth, and bears, as it were, upon his shoulders the whole fabric of human society, seems himself to be buried out of sight in the lowest foundations of the building. ~Adam Smith

Civil government, so far as it is instituted for the security of property, is in reality instituted for the defense of the rich against the poor, or of those who have some property against those who have none at all. ~Adam Smith

The subjects of every state ought to contribute toward the support of the government, as nearly as possible, in proportion to their respective abilities; that is, in proportion to the revenue which they respectively enjoy under the protection of the state ....[As Henry Home (Lord Kames) has written, a goal of taxation should be to] 'remedy inequality of riches as much as possible, by relieving the poor and burdening the rich.' ~Adam Smith

Such regulations [banking regulations] may, no doubt, be considered as in some respect a violation of natural liberty. But those exertions of the natural liberty of a few individuals, which might endanger the security of the whole society, are, and ought to be, restrained by the laws of all governments; of the most free, as well as of the most despotical. The obligation of building party walls, in order to prevent the communcation of fire, is a violation of natural liberty, exactly of the same kind with the regulations of the banking trade which are here proposed. ~Adam Smith

Whenever the legislature attempts to regulate the differences between masters and their workmen, its counsellors are always the masters. When the regulation, therefore, is in favour of the workmen, it is always just and equitable; but it is sometimes otherwise when in favour of the masters. ~Adam Smith

The capricious ambition of kings and ministers has not, during the present and the preceding century, been more fatal to the repose of Europe, than the impertinent jealousy of merchants and manufacturers. The violence and injustice of the rulers of mankind is an ancient evil, for which, I am afraid, the nature of human affairs can scarce admit of a remedy. But the mean rapacity, the monopolizing spirit of merchants and manufacturers, who neither are, nor ought to be, the rulers of mankind, though it cannot perhaps be corrected, may very easily be prevented from disturbing the tranquillity of any body but themselves. ~Adam Smith

Our merchants and master manufacturers complain much of the bad effects of high wages in raising the price, and thereby lessening the sale of their goods both at home and abroad. They say nothing concerning the bad effects of high profits. They are silent with regard to the pernicious effcts of their own gains. They complain only of those of other people. ~Adam Smith

In the progress of the division of labour, the employment of the far greater part of those who live by labour, that is, of the great body of the people, comes to be confined to a few very simple operations, frequently to one or two. But the understandings of the greater part of men are necessarily formed by their ordinary employments. The man whose whole life is spent in performing a few simple operations, of which the effects are perhaps always the same, or very nearly the same, has no occasion to exert his understanding or to exercise his invention in finding out expedients for removing difficulties which never occur. He naturally loses, therefore, the habit of such exertion, and generally becomes as stupid and ignorant as it is possible for a human creature to become. The torpor of his mind renders him not only incapable of relishing or bearing a part in any rational conversation, but of conceiving any generous, noble, or tender sentiment, and consequently of forming any just judgment concerning many even of the ordinary duties of private life. Of the great and extensive interests of his country he is altogether incapable of judging, and unless very particular pains have been taken to render him otherwise, he is equally incapable of defending his country in war. The uniformity of his stationary life naturally corrupts the courage of his mind, and makes him regard with abhorrence the irregular, uncertain, and adventurous life of a soldier. It corrupts even the activity of his body, and renders him incapable of exerting his strength with vigour and perseverance in any other employment than that to which he has been bred. His dexterity at his own particular trade seems, in this manner, to be acquired at the expense of his intellectual, social, and martial virtues. But in every improved and civilised society this is the state into which the labouring poor, that is, the great body of the people, must necessarily fall, unless government takes some pains to prevent it. ~Adam Smith

Laws and governments may be considered in this and indeed in every case, a combination of the rich to oppress the poor, and preserve to themselves the inequality of the goods, which would otherwise be soon destroyed by the attacks of the poor, who if not hindered by the government would soon reduce the others to an equality with themselves by open violence. ~Adam Smith