Should we build more walls to control covid19?

Back in the old days many towns were surrounded by a fortified wall. Would you like to see a return to them to control the spread of covid19. If there's a big spike in a town we could lock them in or if one had no cases they could stop people from surrounding area coming in.
Should we build more walls to control covid19?
Updates:
1 mo
I'm not talking about controlling illegal immigrants. I'm on about stopping people leaving or entering towns not countries
Should we build more walls to control covid19?
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