Should I return my sigma 24-70mm f2.8 DNii and get the Sony 24-50mm f2.8.

I’ve been thinking about this now since I just got the Sony 70-200mm f2.8 GM2, so since that lens will cover my 70mm focal length, I thought of returning my sigma 24-70 and getting the Sony 24-50 due to its smaller size and lighter weight. Also it being a native lens to my Sony a7iV unlike the sigma.