What are their motives could it be that they are just anti Bitcoin or attacking Bitcoin because it is a competitor that will soon push them out of business.
If they continue to hate Bitcoin, they seem to have serious reasons. Yes, one of the reasons can be a competitor, so they don't want Bitcoin to exist and bother their business. If many people move to crypto investments, their business probably decreases in popularity. To prevent it, they spread FUDs about Bitcoin to make people around the world be afraid to join Bitcoin investment.