I would say yes assuming the group (of which the entire collective is made) also has the ability to change its mind later and vote that non consensual sex is in

I would say yes assuming the group (of which the entire collective is made) also has the ability to change its mind later and vote that non consensual sex is in fact not ok. If the majority of a group decide something then that implies collective consent unless and until the minority are so outraged that they either successfully agitate for change or the group splinters and starts fighting e.g. as happened with the abolition of slavery in the US. Basically, collective consent is an implicit concept rather than an explicit one and doesn't require (nor imply) universal acceptance of something.