klassyim assuming you havent read any of biden policies at all OR you’re just privileged enough that any policy driven through by either party isn’t going to have any greater effect on your life whatsoever.
Any progress is beneficial for somebody, no matter how slow it is.
Obama ran on a massively left platform at the time in 2008 and then proceeded to do essentially none of the things he promised even though the dems had a supermajority in the house and senate. Give that Biden was his running mate and they're both bred from the same power-entrenched ilk there is no reason to believe anything on Biden's platform will be fought for in any capacity
This argument might make sense if you were talking to someone who wasn't voting, or was voting 3rd party in a swing state, but even then, the whole "people who complain about how shitty American politics are are upper middle class white people who don't understand anything" is not true at all. The 100 million people who don't vote in this country aren't a majority privileged class, they're poor, young, disenfranchised, and largely POC.
And this sentiment that "any progress is good don't complain :)" is consistently used to co-opt actual meaningful change, and used to justify shittier policies that are strictly worse than what was promised (see ACA). Also, this sentiment doesn't apply when we're facing down literal climate doom and its either you go all in, or we all die. Neither candidate is going all in.
I'm voting for Biden because Trump blows and lifting up orgs and people that will criticize him and his fellow milquetoast liberals nonstop sounds a lot more fun that worrying about my LGBT+ and immigrant friends for another 4 years (but Biden won't really do anything to fix their situation all things considered). But as mustardoverlord pointed out, I don't think slapping some rando on the wrist for saying "hey this blows" is very productive