But shounen ai and yoai are two completely different things!
Shoujo/Shounen ai is tag for romance between same sex couples. It normally has extremely limited sex scenes and more often than not, no sex scenes at all because it’s all about romance. For example
Yuri Is My Job! Is shoujo ai.
Yuri/Yoai is just about sex between same sex couples, it’s going to be extremely light on any sort of romance as it purely designed to titillate the reader. For example
Sensory Sharing Maid-san! Is Yuri.
Lobbing them both together under the hashtag boy/girl love is downright degenerate.