What would it mean if your dad “disowned you”?
I think the MC Sisters only return home to their family about every 10 years. At least, it is a long time between visits home.
Maybe the priest are similar. Meaning you may not see your family much anyway.
The Sisters “own” only a few things. I believe their possessions are three saris. One they are wearing, one drying on the clothes line, and one folded on the shelf. Sister told me they rotate to a different bed, shelf in their room, and place at their table. She says that way they don’t even begin to feel “this is my placemat”.
If the MC priests are like the Sisters and don’t have many possessions, your father most likely wouldn’t be giving you gifts - even if he didn’t “disown” you.
The volunteers I know with the Sisters are “Republican”. Voting Republican is probably not why your father dislikes the poor.
Maybe it would be good for you to talk with your dad about the MCs. Maybe you two would enjoy looking at these links.
motherteresa.org/07_family/Volunteering/v_cal.html
motherteresa.org/07_family/Volunteering/v_cal.html#Peru
Be at Peace.