OP:
Breathe
Take a step back
Get ready to be icy calm and firm
You need answers as to why they won't start your induction. If it's baby's heart rate then you need to ask to speak to a doctor and ask them what their next course of action is in situations like this.
Never beg or ask for a CS. Frame the request as "what would you do, what would you suggest?" The moment "CS" is mentioned, jump on it.
It is highly likely that you will end up with a CS if your cervix is high and long and STILL high and long after the tampon pessary.
Normally that pessary would do it but if not they will then give you hormone gels; two twelve hours apart.
I think you have a case for saying that if the pessary doesn't work they need to give you all the options and proceed with the one you choose.
Fuck messing about with gels if you're making zero progress and you've been in for so long already.
No midwife will give a shit about your MH as they are focussed on baby and baby only. The doctors are the ones with the decision making capacity and it's them you need to speak to.
This reminds me strongly of my delivery with DD. Absolutely no progress meant I ended up with a CS after four days. The only way I avoided the drip as I asked for my options after I refused to have another gel; I was exhausted, tired and getting so very sore internally.
Keep asking to see a doctor. Your DH too. And good luck.
Ps: don't fear a CS. Mine was a complete doddle and after what I'd been through it was blessed relief. Baby is coming soon and this nightmare will be behind you x