So many people have decided that linking arms is somehow the neutral option, like every form anti-racism expression for 300 years hasn't been derided and alternatives recommended. At some point you've just got to recognise it's the expressions of anti-racism people don't like. https://twitter.com/BBCSport/status/1336044895933509634
In the 80s consumer boycotts as expressions of anti-apartheid politics were mocked in the press. Literally not buying oranges because of an actual apartheid brought out some of the same voices against kneeling.
If you honestly think the global sports-media complex has been captured by cultural Marxist intent on overthrowing global capital, if that is now a mainstream view that can be expressed, then our country's ability to understand, well, anything, is well and truly fucked.
If you can diagnose some of the anti-Semitism on the left, as subtle but toxic as it is, but are happy to wave on the idea of a Marxist shadowy cabal trying to infiltrate "our" institutions, I'm not sure your fight against anti-Semitism is as strong as you think.