The concentration camps were open under the DNC and expanded. Both the DNC and GOP make open use of camps like Guantanamo Bay and brutalize immigrants and foreigners, liberal media outlets like CNN obfuscate them while the DNC is in office and highlight them when the GOP is. It's how consent is manufactured. It isn't "one side" that has these camps open, both the GOP and DNC utilize them to terrorize people the US gov considers its enemies. The camps don't close down for 4-8 years between parties, they stay running and often expand under both parties.
Neither is acceptable for workers. The working class needs Socialism. Capitalism is crumbling, the US is de-industrialized because financial Imperialism was incredibly profitable, but as the US loses its influence it loses its super-profits from Imperialism. Neither bourgeois party can or will make the transition from an economy where private ownership is the principle aspect to one where public ownership is the principle aspect, so the working class must force that through organizing and overthrow.
Finally, the bit on Nazi apologia is absurdly off-base, and insulting. You are minimizing the actual and real extent the DNC has expanded and utilized the very same camps you call "gulags" simply due to ignorance or partisan loyalty to the DNC. I'm apologizing for neither party, my point is that both are unacceptable, not that "the GOP isn't as bad" as you are painting my stance to be. You should absolutely read Blackshirts and Reds.