[rmbyrro]

Empirical research [1] [2] shows that your worry is unfounded.

[1] Homeschooled Children’s Social Skills: https://files.eric.ed.gov/fulltext/ED573486.pdf

[2] Homeschooling and the Question of Socialization Revisited: https://www.stetson.edu/artsci/psychology/media/medlin-socia...

Edit: if I had to bet (don't know any research), schools nowadays are the main producers of intolerance, with the indoctrination and teaching kids to only respect civil discourse, ideas and opinions if they agree with the mainstream world model.