What’s the issue here? This new virus is now assumed to be more deadly than the previous one and immune to vaccines. After what the whole world has been through and how slow countries were at banning flights from affected areas the first time around, makes sense this time to act swiftly before we go back to square one with another lock downs, job losses etc.
Banning countries affected by the virus is not racism. America banned all flights from Europe during the first wave, Japan has now closed its borders to every country in the world.