I'm a novelist. People are jumping the gun a bit with the whole 'woke mob' Twitter response thing.
An agent will only agree to represent you if they think they can sell the MS you've sent them, and that will be based as much on their judgement of the current state of the market, what editors they have connections with are looking for in different genres etc, as much as on the quality of your writing -- their decision will be made on their perception of whether they can sell what you've written.
And for various reasons, not just the 'own voices' issue, it's a tough time, especially to be starting out. My own agent is having difficulty selling new work from established novelists, some of whom have been on major prize shortlists in the past. I know, unofficially, of one woman of extraordinary talent, whose 'big name' agent has only been able to place her fifth novel with a small press for a derisory advance.
But worries about authenticity and how something will be reviewed and sell are part of those considerations.
Someone I used to know has just published an autobiographical novel about navigating being gay in Ireland in the 80s, coming out while being an illegal immigrant in the US, AIDS, queer activism, up until the Irish marriage equality campaign etc - I haven't yet read it, and can't speak about its merits or otherwise as a piece of writing, but you can see why marketing something based on the rich details of lived experience, from someone who will also command a considerable authority (and audience) from her activism, is appealing.
Ask yourself why an agent or editor might choose to try to sell or to publish that novel rather than one by someone with no access to the life experiences that will have fed the detail and plotting of that novel?
Out of interest, why were you so drawn to telling this story? A querying letter to an agent would normally cover this (I was drawn to this story because it's based on my grandfather's diaries/ I visited X years ago and came across Y in the little local museum etc etc), and an agent would often want to use this type of backstory as a marketing strategy in a pitch letter to agents eg 'This riveting story is based on X's years working as a forensic pathologist in the former Yugoslavia' etc.