In the first place it is highly highly improbable that the TC community or its leadership would ask Turkey to leave. As many people have already pointed out the dependency - economic in particular - that has developed over the decades is a massive disincentive to issuing such a call. This is especially the case in the absence of a worked-out viable alternative (itself likely to be part of a negotiated comprehensive settlement).
Secondly, issuing such a call depends for its credibility on it arising from a more or less solid social base. What is that social base ? Sure, an inividual here or an 'ultra' party there can make this call and it will be immediately discounted as 'pissing in the wind'. Which section of TC society (supported by which section of GC society) is this call going to come from ? Again people have already noted on this Forum how TCs are in a numerical minority even in northern Cyprus and are on a demographic downward slope both in absolute and relative terms.
Third, of course is the form or content in which such a call would be framed. For example, is this a straight withdrawal or is it timetabled ? Is it without pre-conditions or is it subject to fulfilment of other requirements ? And so on.
Fourth, even if TCs made such a call the question of under what auspices such an action would take place is raised. That is to say, is this under UN, EU, OSCE, bi-ltaeral, etc auspices and how does it relate to the wider Cyprus negotiations.
Whilst I'm all for TC society making such calls it is nevertheless little more than wishful thinking if we do not consider the concrete reality that TCs have very little power in the situation.