As well you should, given that you have availed yourself of your rights as a citizen in the state in which you reside.
Whether your science is good or bad.
And I suspect, in the case of the measles, that your science is bad. But that’s not the issue in the case of you exercising your rights. You don’t need scientific justification.
The bad science is often done by those who usurp the label “scientist”. Such is the corruption we live under now.