That has always been far more true of the right than the left, so the real damage Labour is sustaining due to its inability to address their anti-Semitism thing adequately is disproportionately worse. They are historically the non-racist party, so it hurts them big time. I am convinced the self-imposed damage they are taking at present that will take a lot of time to reverse. The right has always been riddled with racism. Everyone expects it, and the Conservatives have a very long history of actively pandering to it, e.g. the “want a n****** for a neighbour? vote Labour!” fliers in the ‘60s, siding with apartheid South Africa in the ‘80s, right through to Grenfell Tower and Theresa May’s “hostile environment” which led to the Windrush deportations etc. Some moderate Tory voters will genuinely be horrified by it, many will turn a blind-eye, and some will actively welcome it. It is the former group that Labour need to flip to win an election, and whilst they are mired by their own accusations of racism that just won’t happen.