Not a straw man, try again. He is drawing a parallel, like an apple is to an orange is to a pear. An inocolous word does not lead to a prejudiced attitude. For example, I had no idea slope has ever been a slur before that farce. Should I be fired if I use a common language word I had no idea could ever be construed as offensive?
Oh and hypocrite, not only is it not a straw man, you yourself have just commited an actual strawman, indeed the straw man that underpins this thread, highlighted in bold. This thread isn't about racist attitudes. Your straw man demands it's about racism. The claims 'clarkson made this joke, therefore clarkson has a racist attitude towards group y' is itself a strawman, thus proving how ridiculous and annoying you straw man wah wah posters are.