You've got that right. It's often tiresome and sometimes plain hurtful; and they really don't know everything, in spite of what they think.
>> they really don’t know everything, in spite of what they think
“...Claiming to be wise, they instead became utter fools. ... So God abandoned them to do whatever shameful things their hearts desired. As a result, they did vile and degrading things with each other’s bodies. They traded the truth about God for a lie. So they worshiped and served the things God created instead of the Creator himself, who is worthy of eternal praise! Amen. That is why God abandoned them to their shameful desires...”
From Paul’s Letter to the Romans, ch 1
They justify truly terrible cruelty against parents and grandparents under the “setting boundaries” umbrella.