Something can be rational, but that doesn’t make it justified.
Something can be understandable, but that doesn’t make it legitimate.
A fear about something can be real, but that doesn’t mean the object of fear is real, or that the fear is justified, or legitimate.
Describing the fear as ‘very real’ does not make the object of fear any more real. But it may make the fear more real.
Something can be legal, but that doesn’t make it just.
Something can be just, but that doesn’t make it legal.
Legality and legitimacy are two different things.
Legality isn’t necessarily a good thing and neither is legitimacy.
Voting for something doesn’t mean you’re going to get it in any measure, no matter how passionately you vote for it. Whether you get it or not is decided elsewhere.