It does not mean avoid at all costs or never do it but would fit perfectly in with Reagan's mantra Look, I think most people here are arguing to avoid ALL foreign entanglements, which is Rand Paul's position.
No, I don't think you are correct even though I agree with you avoiding all foreign interactions is wrong. Some here argue for isolationist policies which do not work. But most, I believe, are arguing for America First. Help our allies yes, and counter our enemies yes, but with more brains and prudence then we have shown in the past which is very difficult with the entrenched swamp creatures we have in every corner of government.
The other thing to think about is this - since we are involved (read: hemorrhage money and blood) in almost every country in the world when we pull back or there is talk about America First or MAGA the knee-jerk reaction is to shout "Isolationist" because any small movement in the direction of "let's take care of home first" seems so radical to what we have become, the world's pocketbook for money and blood.