Rand Paul’s second comment is truly idiotic. The first comment at least presents itself as more of a moral opinion. I disagree with that opinion, but at least it presents itself as an opinion.
Personal liberty vs. Common good is a debate worth having when it comes to vaccines. I fall pretty heavily on the common good side. There are a lot of personal liberties we give up for the common good, some more frustrating than others.
Clearly Rand Paul is pandering to anti-science fools rather than sticking to the less onorous personal liberty approach.