You obviously ignored the article where the Pentium was only 2% behind an i3 6100. The i3 7100 is not all that faster. Kaby Lake didn't add any meaningful performance over skylake. You say you know it is hyperthreaded, yet this statement says otherwise.
7100 will outlast the Pentium considerably due to their far superior multi threaded performance over and above single core processing.
It is obvious you have 0 clue as to what you are talking about regarding the new Kaby Lake Pentium, or Kaby Lake in general. Your assumptions are based on old knowledge, of previous gen pentiums.