I would keep it, I think it’s a lovely thing to do, but he doesn’t. If he owned the property with rights to do this, I’d say he has the right, but he hasn’t bought the land, so he should not. Let it go, this isn’t the place for you Mister.
He’s shallow, but he’s allowed to be. He probably wants to build some (what I call) Monument to Self. A 6000+ sf home for a small family.
I considered burying my family members ashes on our property, but ultimately didn’t because we won’t be here for years.
Adjacent to my dad’s farm (in Bama), there was a 40-acre site where in the middle...was the graves of the husband and wife who came there and settled in the mid-1800’s. The graves sat there for all those years. Sometime in the 1980s, the property got sold to some local farmer, who quietly went out there one night and removed the gravestones. The next spring....he plowed the entire field...including the 6 foot by 6 foot section where the couple was buried. No one noticed this much...the grave was a good 400 off the paved road, and you had to stretch to see the stone anyway. It was a year or two later before anyone noticed this and mentioned this to the farmer. He didn’t care, and most folks just looked the other way. My dad didn’t have much positive to say about the guy...but admitted later that at least a hundred graves in the local area were like that in the 1950s, and almost all of them have had the stones removed in the past forty years.