Re: I see this as a lack of self respect
And that gives you the reason and right to kick your MIL out ? And have that kind of respect for your husband. If you helped him in financing your home that should have been out of love not for establishing a claim on your husband and a tool to control him and his family. I pray for well being of your husband and his family.
Be afraid of Allah if you believe in Allah. Arrogance is the most hated trait in Islam.