Безусловно, оба этих подхода возник

Безусловно, оба этих подхода возникли неспроста, и каждый из них может предъявить какие-то эмпирические подтверждения. Тем не менее против и того, и другого есть что возразить.

Results (English) 1:

Of course, both of these approaches have an ulterior motive, and each one can produce any empirical evidence. However, both have something to say.

Results (English) 2:

Of course, both of these approaches have any ulterior motive, and each of them may present some empirical evidence. Nevertheless, and against that, and there is another protest.

Results (English) 3:

Of course, both of these approaches have emerged but I don t, and each of them can produce what the empirical evidence. Nevertheless, against and addition, and another is that object.