How are seahorses not extinct yet?

[Bigfishcity007]

I have been wondering, for way, way, way too long.
Why?

Just look at their long, slender bodies. How do they even manage to move with no fins? I don't know, but what I do know is that they use that tail to cling to plants or algae. They also have pretty tough bodies, which is not useful when you literally move as slow as a snail.
The male also lays the eggs, which makes, little sense, but I don't mind.
I don't even know how evolution lead them to be like this, but they are like this.
So please, experienced fish scientists, tell me how they are still alive.

 

[Rocky998]

I do not believe in evolution but uhhh they are very beautiful creatures that move with the flow of water if I'm correct... I doubt my self as I say that because I thought I heard they move with current but I could very well be wrong... They have a strong bodies BECAUSE they move as slow as a snail

 

[Bigfishcity007]

They have a strong bodies BECAUSE they move as slow as a snail

I was thinking that a big enough fish could be able to just devour the seahorse whole. But smaller fish could still be able to take on a seahorse, I believe.
I am also unsure about the "they move by current's" part, it may be true and may be untrue.
However, I am still baffled that they aren't extinct yet because of the fact that humans also hunt 100000 of them per year, at least that's what I heard. But the statistics could be outdated or wrong.