A small pebble inside your shoe doesn’t bother you too much at first.
But leave it there and keep walking and it soon starts to irritate you. Mentally mostly. But keep going and it begins to cut you and that cut, untreated will get worse – and worse.
It’s the same with toxins in your culture. If they are there, the best solution is to remove them – before they cause too big an issue. Ignoring them just isn’t an option if you want to thrive.