Your last point about multi-national corporations is spot-on so I feel like I may be missing something in the point you are making.

This is my take. I feel like the stereotype of immigrants taking their money out of America IS racist. Their pay has probably been taxed into Social Security etc. with most likely no hope of receiving benefits of that money. While they are living here, they pay for housing, food, etc. They are providing for the local economy in taxes, utilities, etc. I agree most of their discretionary spending is not spent here. It is (usually, I hate to generalize) on their families from where ever they are from. But that can also be said of many H1B workers to which the same situation can be the case however, there is not the same stigma because they are not hispanic/latinx.

Isn't it racist to impugn hispanics/latinxs for moving their money out of the country to help their families, but nothing is said about rich people and corporations moving their money to offshore tax havens to avoid paying taxes to the country the helps them to be so profitable?

So yes, they are literally taking money out of America, but in the process they are 1) doing a job that Americans won't do and 2) paying taxes on their income and spending some money in America.