the dump has no effect on the price. ripple is centralized and it is been controlled by financial industries and individuals in the banking sector. they understands this game well and believe me, They are not dumping. they are reaching out to the community. Adoption at its best. cryptocurrency has come to stay and it is now an investment plan. some are already investing in it as a retirement plan.
I don't think a lot of people are using XRP as a retirement plan though. if you look at the market history, you can see that ripple has started to dump in price starting 2018. They've never made a major recovery from that and they have been stable at the price of $0.2 ever since. I don't thin they'll ever recover from that though.