There are indeed bigoted arseholes who simply cannot bear to have anybody have a different opinion to them. They are frothing at the mouth to tie anybody to the stake who they sniff out as experiencing wrongthink.
The radicalised far left of this site (who are utterly blind to their own massively concerning far left swing in the last few years) will scream abuse, demand silence, shout slurs, attempt any kind of vicious, venomous abuse to silence and shut down anybody they can who steps outside the cult think of far left bigotry.
So much so they will go bananas over this post, and I won't bother with their replies :)
Millions of ordinary people with whom they agreed 20 years ago (and whose views have not changed) are now labelled far right, and apparently the radicalised far left have never even heard of the Overton window 😅
However, it's not the same as racism, as race is in your DNA and can't be altered. But you can still learn to be a decent person with centrist views and not shriek abuse any time someone suggests the mass rapes of many thousands of little working class white girls by Pakistani Muslim rape gangs (for example) might not be a great thing to sweep under the rug.
Indeed, many Pakistani Muslim men manage not to indulge in mass rape and abuse of little working class white girls, and perhaps could be taught to stand up and be counted instead of assisting with the cover up or staying silent.
Behaviours can be learned, and changed, while DNA cannot.
Humans are tribal, easily led emotionally and many do not care about the facts, only pleasing their ingroup. The ingroup on mumsnet up till very recently has been excessively far left, imagining themselves to be progressive (although they have turned out to be regressive and aggressive) and their echo chambers have been cossetted by the msm.
Now they are reeling because they've realised that's not how the world at large views things at all and the far left bigotry and hatred towards anybody who dares indulge in wrongthink is oozing from their every pore as they become frantic in their efforts to stamp out thoughtcrime.
So no, although they are bigots and blind to their own prejudice on this site and many far leftists of the site and elsewhere are hateful, bigoted and vile to those who they perceive as experiencing wrongthink* people can (and have to) cover up their opinions when around these bigots and blend in.
But you can't generally can't hide your race/ethnicity so easily.
So, it's bigotry and prejudice to scream abuse at, aim slurs at, treat disparagingly and attempt to harm people who vote differently to you politically, but it's not the same as racism.
*Note - the far right are obviously also bigoted and hateful, but they have never, ever been in ascendance on this site or in the UK in the last 30 years. Indeed the UK is about as far left as it can get without becoming actually outright communist now. This simply stated fact will send the regressives of mumsnet into shrieks of rage and hateful slurs, the bigotry will emerge in the responses to this post and once again the replies will prove the post to be correct :)