Not a comment on this guy or Google in general, but swastikas are found in a lot of traditional embroidery and other types of design in the baltics countries, so this piece of information is more or less correct.

But would a pet affect this? Isn’t endangered status about wild animals?

In colloquial language, “chemicals” is fine IMO. It’s clear from context that it’s not H2O. Just like substance abuse is only about drugs, not cornography.