Quite the bold take, yet what substantiates this alleged truth if you lack evidence?
If they, the fascist dictators, somehow managed to align with the modern Democratic Party, Hitler wouldn't have killed millions of marginalized groups and would most certainly not have claimed German supremacy across nations, fueling white supremacy and nationalism (yes, it is different from patriotism).
That wouldn't be possible in your sense because woke people of the DEI hate America yet Hitler and Mussolini were nationalists, people who GLORIFIED their country over other nations.
It'd be quite foolish to equate liberalism to fascism, after all, how can believing in principles of equality equate to (usually) white supremacist ideals? Wouldn't Hitler + Mussolini prefer actual white supremacist groups?
some extra things if you wanna check em out, idk if you will, but hey it's free will, what can I do about it:
https://education.cfr.org/learn/learning-journey/what-does-fascism-really-mean/what-is-fascism
https://www.thecollector.com/richard-wagner-nazi-german-nationalism/
https://encyclopedia.ushmm.org/content/en/article/adolf-hitler-early-years-1889-1921