My first red flag would have been being in a relationship where one person felt they were quite within their rights to "hide" my property until THEY could control how I used it....putting it up high where you cannot reach it?
Why on earth is he treating you like you are 5 years old? Seriously...putting things up high and hiding things away from children is what us parents do to ensure the children don't get hurt or whatever.
That would have been my first massive red flag. What right does he have to control your sex life? What right does he have to control when and how you orgasm? Do you know that, just like you, there are LOTS of women who cannot reach orgasm easily, if at all from manual stimulation and vibrators have saved their sex life and taught them how to experience orgasms...
What right does he have to take that away from you? That is YOUR body...you choose when you eat, sleep, shit and heck...masturbate!
What I am trying to say is that this is controlling behaviour. You say he has never acted controlling before the hammer smashing...well according to this, he has and has been for a while, controlling when and how you pleasure yourself and hiding your toys. This screams control and from what you said, has been going on a while.
He has no respect for your property, your rights as a sexual human being, your wants, your desires....
Sorry but all I want to ask is why on earth stay with this guy? I can pretty much guarantee that his "Am I not enough" attitude will be the exact attitude that guarantees that for however long you stay with him...HE will get his and you will be left frustrated.
Ask him why it matters how you get off, as long as you do get off.
I have NEVER understood why someone should be insecure about sex toys. I know it happens (from both sexes) and it seems to be a jealousy thing (What if that toy gives him or her better orgasms, or feels better than me) REALLY? an inanimate object? A lump of plastic? How low must your self esteem be, to think anyone would leave you for a sex toy. What is the fear here? is it "oh shit, now that person might not want sex with me any more" bit selfish isn't it. Basically he is saying to you the following:
"I don't care if you never orgasm again, just as long as I can continue to get mine (sex) and if and when you do orgasm, it will be through my touch, to boost my fragile ego...and that's it"
And to smash up your property? Like he has any right to do this? Like he owns you and your stuff? Oh dear....I just want to say "run" :S
PS: His friends are jackasses too and are talking out of their arses. Insecure little boys by the sounds of it hunni...you need to find a man who cares about how you get yours. Who cares about your pleasure...seeks it even! You are not his little toy, you are your own woman, with rights to masturbate how and when you please! IT IS YOUR BODY! You put into it whatever you want hunni.
If he doesn't listen to reason and refuses to change then either two things will happen 1) you can leave 2) you can stay and service him for the next however many years and not get pleasure yourself.
Heres hoping that he will change, but the fact he has his "boys" backing him up and was so ragey about it to want to smash them with a hammer....I don't think he will tbh.