A globalist vision is undesirable. It would lead to the loss of national identity and culture.
A globalist vision is dangerous. It could lead to the rise of a global tyranny.
A globalist vision is impossible, because different groups have different goals.
I heard about a group of people who formed a homeschooling group. That went well. Then they decided to add another coal and the group fell apart.
The world can not have a unifying vision that because too many large groups have different goals or visions.
So globalism can be imposed only by force, so it will be tyranny if we can not stop them.
The US worked because most people aligned themselves with the goals. There were some exceptions which we were able to work out, such as the pacifism of the Quakers. Others we were unable to work out, such as the polygamy of the Mormons, so they had to change to be included.
But now we are falling apart because of conflicting visions: the conservative, which continues its alignment with the goals of our founding fathers, and the new ones which the left-wing extremists are refining impose by fiat or force.