Get a 2nd opinion.
Speak to them until you understand why they advise as they are.
I am not aware of longterm scar issues (internal scars, I mean) due to previous sepsis
Have you looked as CS rates of your hospital?
CS rates are high everywhere but there are considerable variations between hospitals and between individual consultants.
You need to understand what advice you have been given and the reasons for it.
Nobody can make you have a CS. Or a VBAC for that matter.
But it is crucially important that YOU understand what the concerns are.
Fwiw (and I've said this with monotonous regularity on threads like yours) IMVHO the mode of delivery is such a teeny-tiny part of being a parent that it is useful if an expecting mother can keep a bit of an open mind about what happens.
I had a heavily medicated induction for post-dates resulting in VB, an emCS at 31 weeks for PP, and 2x VBAC. I am convinced that I feel as content as I do about all four of these deliveries because I always understood what was happening and why - I have happy memories of all of them (well, shit-scared for DS2 but not unhappy about how his delivery was managed).
Having said that, you need to get your head around this so that whatever happens in the end you don't live with 'what ifs' and 'had I onlys'.
It is really hard, don't be despondent, arm yourself with information, set up another appointment and keeping talking to folks. You may need to be quite assertive because everybody is busy and your questions may not fit in the standard number of appointments, but hey ho.
Phone your consultants secretary and ask her to set up a meeting with him/her.
Write your questions down.
Write their answers down.
Ponder things for a bit and then ask some more questions 