You must understand that downvotes are not stealing your money because it’s not yours. Only at the end of the 7 day voting period are rewards allocated from the blockchain based on the total of up and down votes over this period.

I expect that some people feel your content is being rewarded more than it’s worth so they are trying to cut your rewards to a more reasonable level.

This is a healthy part of the curation process.

There is a lot of amazing content on Hive that earns only a few cents or a few dollars.
You should be happy that your content is still earning very well even after the downvotes.