Zakonczenie rozprawki

czy takie zdania sa poprawne gramatycznie i nadaja sie do podsumowania rozprawki for/against [ miejmy nadzieje ze taka bedzie :-p]

This is a contentious issue and, in principle, almost impossible to settle.

This is very contentious issue and it is very hard to say whether positive or negative

This is a very contentious issue and thus impossible to say whether positive or negative

>>This is a contentious issue and, in principle, almost impossible to
settle. To jest ok.
>This is very contentious issue and it is very hard to say whether
'positive or negative' (nie - nie tak, lepiej...whether the positive/negative outweight the negative/positive aspects.
mozna tez tak:
This is a very moot point and whether you see it as good or bad depends on your individual point of view.