They are delusional, but they're also stuck between a rock and a hard place.

Their vaccination levels are simply not high enough, and the vaccines they're using are not effective enough. As a result, if they let this burn without restrictions then their medical system is going to get overwhelmed and massive numbers of people are going to die.

During previous lockdowns they could truthfully point out that everyone else was locking down. They don't have that excuse any more.