Trump, Cruz, Kasich, Rubio: none will support pledge to support nominee?

If you listen carefully to which EACH of these men has said now, none of them are saying, "I absolutely will support whoever is nominated."

Trump has been betrayed by the Republican Party and the whole world knows that (maybe for good reasons).

Cruz won't support Trump as the nominee.
Kasich won't support Trump as the nominee.
Rubio won't support Trump as the nominee.

So, what happens now?

My thought is that Trump likely will start his own party in competition with the Republicans.

OR Conservative Republicans are going to start another party to compete with Trump if he wins the Republican nomination.

So, it looks seriously like Hillary will be president and Bernie will be Vice President or vice versa at this point.

So, likely either way Hillary likely will be president either way because Sanders is already 74 and likely might not survive two terms as President. Being president takes a lot out of you. Look at what it's done to President Obama and also look what it did to Bush II and Bill Clinton while they were all president. It's no laughing matter.