Arab countries are doing fine so far.
Indeed - but the problem is the restricted numbers of visiting fans. When England and Team USA meet, there'll probably only be about 6 to 7 thousand supporters actually following the teams, in a stadium of 50,000+ capacity. Takes much of the passion out of the atmosphere - how many England and US fans would be there if the game was being played in, say, Germany....
For Qatar, the issue is more political - they were regarded as a Western supporting nation, in the region, just quietly going under-the-radar. Now they're having to deal with all of the issues, and criticism, which would never have arisen if not for the WC...
And, even against
Argentina, I couldn't root for the Journalist Murderers...

If Infantino wants to be an apologist for Islamic repression, that's up to him - but it doesn't mean we all have to be. Why root for those whose ideal would be the overthrow of all of the values we hold in the West?