DMcG,
Which does require a hard border, in most people's opinion, though I accept you don't think so.

Neither does UK government and neither does the head of HM Revenue and Customs.

Jim, anyone that Ireland allows to enter is welcome to enter UK.
UK will not be stopping anyone at the border.
We do not want or need a hard border.

Racist -are you mad!!!!

Yes. Giving preference to Europeans over other groups, Asians and Africans for instance, would be racist.