I agree.
I think "I want to make money from YT/Twitch/[insert any media platform]" is similar to some millennials saying "I want to be famous!". By what means? What are you known for? (other than just being "famous") What unique and interesting content does the channel provide?
With that in mind, if you want to make money from a YT channel, I would first think about how you can efficiently make interesting content for a channel that is worth watching, attracts a large enough audience after e.g. 1 year of effort, and is sustainable for you to do combined with work, family, other hobbies and the hours you got to spend.
This is actually easier with electronics, for the following reasons:
1- electronics people don't need special effects on video = shoot + render is enough = very simple video works perfectly.
2- electronics is kinda niche so you won't get too much competition except for fellow electronics engineers, unlike for example prank channels.
3- viewers don't expect more from you, just the regular stuff. However, pranks have to get bigger, general youtubers must invent something new each now and then to keep viewers interested.
4- you can make what is already there and still get audience without copyright stuff, like millions of arduino tutorials.
5- you could get loyal fans easier than general channels.
6- it is a hobby so the channel won't cost you extra money, since that money is for the hobby itself. unlike if you wanna perform a prank and you buy tons of stuff then they became useless.
that is my opinion.
best regards,