Hi Akavall
I would not use commas with
consequently in that position. I doubt that I would insert the word 'thus' into the middle of "I think", but if I did, I would not use commas there either.
To me, the only possible reason to use commas with 'however' (in your sentence) would be if someone else had just given an opinion different from mine, and I then wanted to stress the word '
I' -- i.e. to place extra emphasis on the fact that there is a difference between what
I think and what
they think.