Do you understand the difference between transphobia and safeguarding?
Do you understand that just because someone has a trans identity doesn’t mean they can dress in BDSM gear or in a thong only and do sexual moves in front of babies or children?
Do you understand that the % of male people in general who are ‘pervs and paedos’ to use your term os going to be at least the same % of male people with a trans identity being ‘pervs and paedos’?
”What evidence is there that the performers at this event specifically are either of those things?”
What evidence? Well because perverts and paedos don’t wear signs, most adults would understand that taking your baby or child to see sexualised performances is both potentially putting their child in direct or non-direct contact with the people you describe. And will lower the sexual boundaries of the child to make it hard for that child to understand that they should know it is wrong for them to be exposed to sexualised performances in the first place and make them easier to access for those who wish them harm.
So, without a sign, adults then look to a person’s conduct.
What is it about these adults doing sexualised performances in front of any aged child that is not ringing alarm bells for you? If an adult doesn’t understand they should not be performing this way in front of any aged child in the first place, that there is a red flag? That adult has either no or very low sexual boundaries.
And you seem ok with them doing sexualised performance in front of a child of any age.
Meaning you also don’t seem to recognise the sexual boundaries of children and it may be due to you having low sexual boundaries yourself.
Otherwise why even hint that discussion about this is ‘transphobic’?