My husband is adamant about having his parents move in with us despite my reservations

We are a family of four with two middle-school-aged daughters and enjoy a stable life. My husband has an older sister who is married and resides a considerable distance away. Both of his parents are 70, in good health, and living in their hometown.

Recently, my husband expressed his desire for his parents to move in with us, a sentiment that his parents share. I am strongly against this arrangement because I fear it will lead to frequent conflicts with his family. I believe they should remain in their hometown while they’re still healthy, and we can manage regular visits or arrange care as necessary, given our financial capacity.

Additionally, my relationship with my mother-in-law is strained due to our conflicting views. Consequently, I chose not to seek her help when our children were born. Her visits are sporadic, but past cohabitations have led to disputes, leaving me feeling stifled.

After sharing my concerns, my husband still disagreed and continued to advocate for their move. Just thinking about the situation is overwhelming and confusing.

How can I persuade my husband otherwise?