What are you talking about?

Homeless people are always considered to be a health hazard.  If they weren't, the problem of homelessness wouldn't have grown to half a million people in the United States before the coronavirus.  Homelessness would have been treated like the tragedy and ongoing crisis that it is.

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Also from Google:

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He was only saying what a lot of people think:

If that weren't what a lot of people think, there wouldn't be so many homeless people in the first place, and there definitely wouldn't be so many homeless people who are old or who have major health problems.