Go on thinking that, but it really won't help the Democrats win if they persist in this attitude. Voters are just looking at what's on offer from both parties, and one party's platform has been judged to be both hostile to their interests and also actively scorns them as people. The other is mostly hostile to their interests and is super corrupt, but it cuts taxes[1] and doesn't belittle them.
The Democrats squeaked out one miraculous win buoyed by the incompetence of Trump's band of corrupt idiots in the early COVID days. But now merely pointing out how incompetent and corrupt Trump is stopped working, as we saw in 2024. Do Democrats have anything left in the playbook besides derision and scorn toward those outside their tent? We will soon see, I guess.
[1] I know the talking points say that the tax cuts "only benefit the rich" but I'm far from a 1%er and can tell you that I'm paying way more taxes in a blue state than I would be in a red state, and also the OBBB improved things for me. Voters in those blue states can see their tax bills and the one thing Democrats can't say is that they don't put a huge tax burden on those who work.
You're just arguing that pandering and short-term-ism works. I won't hold my breath for a Republican caucus that's actually fiscally responsible.