I just don't understand

Am I missing something my dad sent out a message a few days ago about taking a family vacation next week to Virginia during this pandemic. I didn't even respond to the mass text message because I was not going I'm 23 weeks pregnant with two kids and married, it's not safe to travel and I frankly don't have the best relationship with my family at the moment. My sister calls a few hours later asking if I saw the message and am I going?. I said no and I stated my reasons. She got so upset at me saying I always stay away from the family and started yelling and catching an attitude. I said just because you guys want to risk your health for a weekend vacation doesn't mean I have to or put my family at risk. I am so sick of my family saying I push them away I wonder why because of situations like this. Only thinking of themselves and not others and acting so inconsiderate of other peoples feeling. I'm so done with negative people in my life. I have a happy home and a loving husband. My family never sees how they treat people they always think they are right and if you disagree with them then you are in the wrong. Sorry its just so frustrating to me my rant is done.