Hamilton is a driver whose talent level is way higher than Verstappen. And I don't think that some other driver will be able to break the records that Hamilton did for a long time period. The only reason why people support Verstappen who is an arrogant driver is that Hamilton has been dominating F1 for a long time and people just want a change.
I think that is bound to happen in any sport, people like winners but when someone dominates for so long and with such a large margin over the rest of the participants then it becomes boring.
If anything this has the chance to increase the popularity of F1, after all if next season we see Hamilton once again head to head with Verstappen then that rivalry will bring more viewers, similar to what we saw with Federer and Nadal at Tennis.