Queering politics is causing a loss of faith in the political system, and that is widely accepted as a pre-requisite for fascism. Along with austerity, economic uncertainty, and unrest. If you aren't worried, you haven't been paying attention.
The writing has been on the wall for at least ten years.
I think I first became aware that Europe would ultimately shift right during the Greek debt crisis, the migrant crisis cemented that belief.
By the time Hillary Clinton was calling would be republican voters "a basket of deplorables" I knew Trump would be elected.
When Brexit turned so toxic that anyone who voted leave was branded a thick bigot and Corbyn supporters wrote lengthy Twitter threads berating the stupid red wall voters because they didn't vote for him in 2019 I knew that parties who should support the average working person were now more interested in virtue signalling and getting high on moral superiority than listening.
I have seen many posters here, over the last few years, point out that this approach would push typical Labour voters to the right but the left was too busy calling people bigots to take their concerns seriously.
Your warning is too late for those of us who actually have been paying attention. Perhaps if the left hand heeded our warnings we wouldn't be here.
It's not too late for the left to change tack but I can't see it happening. They could stop branding everyone who disagrees with them fascists, bigots, racists, stupid etc, these words no longer have power or meaning and yet fascists, bigots and racist people do exist but they're are not nearly as prevalent as the left needs them to be in order to give the modern left it's sense of righteousness and purpose. Perhaps they could get back to dealing with the very real issues faced by working people.