Or didn't exist to begin with. All too often mythologized into an absurd caricature of the past.

I didn't realize that such causes like 90+% income taxes, lower income inequality, single earner households, and high unionization rates are "conservative" too.

No one actually paid 90% income taxes. I wish that myth would go away.

Of course because that’s how marginal tax rates work.

As to how much actual money was taxed at 91%, we don’t really have records for that but certainly the top 0.01% paid significantly more in taxes as a rate than they do today.

There were a lot more tax shelters at that time. You only paid those top rates if you had poor or no financial advice.

So nobody would mind going back to that reality right? Companies would totally pay less in taxes than they do now, right?

Oh, they fight that actually.

"That reality" was one in which the wealthy had countless deductions, loopholes, and shelters that were unavailable or inapplicable to everyone else, which (almost) everybody agreed was an undesirable state of affairs.

Actually, a past that never existed. It's pretty typically for authoritarian regimes to create idealized versions of the past as they attempt to rewrite history to better fit with their talking points and agendas.