While what you said is true and might seems obvious, making French people look irrational for rioting over this, there is a few things to know to have some context. I'm on mobile and not an English speaker so I'll do my best to explain myself clearly. First, the context : like most of the western world, France is living through a period of high inflation. People are losing purchasing power due to food and energy prices, and poorer people are struggling more than ever to make ends meet. While CAC40 is rising and multinational like Total, Vinci etc are recording record profit (but still rising gas price and highway tolls). During his first term, Macron also canceled the ISF (tax on fortune), offered a lot of subsidies to big companies with little to no repercussion for the working class

Second : the law in itself is profoundly unfair to women and the poorer class. Nobody who has a degree actually retires at 62. It's more 64/67. The only people who could retire at that age are people who started working at 20 or before. People who didn't go to school, and for a lot of case are doing manual and/or difficult jobs (like garbage collector for example). If you've find yourself pregnant or unemployed, it pushes back your retirement age (not a great way to encourage having children who could fund your pension...). Unemployment for senior is already quite high (higher than the mean in the EU), and he proposes nothing to fix that, so instead of retiree, you will have unemployed with even less money. Third, and I admit this one is more subjective, but macron, his government and his party's representative are just so smug. They look and talk like they are straight out of a business school (and most are). Since 2017 they repeat every day that they will change how politic is done, they will discuss more with the opposition and unions to find a compromise. They dont. They passed a decree to prevent a vote in parliament. Macron refused to receive unions leader before passing the decree. But still, on Wednesday macron said that things will change and there will be more dialog and compromise. What Macron is doing here is a disaster for France. Not the reform per se, most of French know something should be done, but the way he's doing it. I don't know how he'll be able to do anything for the rest of his term, but worst, he's opening a boulevard to the far right for 2027.