It depends on your threat model. There are certain types of information that would be of interest to the Chinese government, and you would, indeed, be unwise to use any services that are under the purview of the Chinese government to store or transmit such information.

Whether such services would be perverted by the Chinese government is a whole other discussion of course.

However, I don't think anyone but the most rabid sinophobe would accuse the Chinese government of wanting to abduct our children.