If you're a young(ish) person capable of analysis of your life, I'd say maybe 16-40 as a broad grouping, you've lived literally your entire adult life or just your life generally with things being progressively worse and worse.
Housing costs skyrocketing with no actual discussion of a fix much less any plans to fix it. Biden has never mentioned housing costs to my knowledge.
Public education has reached rock bottom. The teachers unions that haven't yet been destroyed are being targeted harder than ever. Teachers already get treated like shit in pay and attitude from... well, libs and far right, so they get hit hard from all sides. Libs blame the schools for getting worse while their districts are bright red, property taxes are low or the cash is squandered on bullshit like, yep, more cops! More cops who do nothing in a place with nearly zero crime anyway (most places in the US when you look at stats). Neither the house nor senate have passed any sort of laws to FORCE an end to privatization of schooling and force an end to crushing unions of all sorts.
College education is unaffordable, student debt is stacking up coupling with unaffordable housing costs and mortgage rates also skyrocketing all amounting to "if you don't own a house yet and your parents won't be leaving you a house, you'll never own one. Now pay the rent seeking parasite who inherited the slums he now lords." Biden "tried" and then immediately caved to SCOTUS. He didn't have to, but he chose to.
Healthcare is unaffordable and combined with unaffordable "real food" and people working more than ever people's life expectancy is dropping rapidly. Again, zero policy action by Biden.
All of the above would take positive action- hey, you're all just idealists who expect congress and the president to do things!
Enter Gaza An issue which requires negative action, as in simply DO NOT give funding and arms to Israel. DO NOT veto the security council. Biden could just shut his mouth, sit on his hands, and let the world deal with Israel.
Instead of doing what the majority of the country and basically a consensus of Democrat voters (or generally left leaning people, especially under 40) have demanded, stop fueling this ongoing genocide, he sends blood magic resurrection zombie Rums-irby out to drone on and on "the president doesn't care what you think. This is not a democracy. Now vote to save democracy. No you won't get anything good. Yes we know they're burning babies. Did you not hear me? "We do not care.""
Biden was already a failed president before Oct 7. Maybe on Oct 6 there was some "well, Trump will definitely be worse..." argument. Biden walked out, sleepy eyed from his nap, lied about seeing beheaded babies, still lies about that despite Israelis admitting it was a lie, said Israel could do genocide, and in his stubborn oldness and apparent love for the drinking of child blood, has absolutely refused to do even enforce his own absurdly late and weak red lines. He let Israel ride him like the donkey he is and he's loving it.
What a fucking loser and a moron. He may well go down as the worst president ever and holy fucking shit is that bar high. W still beats him I guess, maybe a couple others like Jackson and Johnson, but Biden still has six months to do more shit.