Why were we invited to that party again?

I'm having trouble understanding why libertarians are still marginally affiliated with Republicans/conservatives. These questions are not helpful for figuring that out.

"Since the 1950s, do you think American culture and way of life has mostly changed for the better, or has it mostly changed for the worse?

Conservatives: 23% better, 64% worse
Libertarians: 74% better, 12% worse."

There are better ways to tell the difference between these two, but pessimism will do if nothing else will. (These are all among a group of mostly millennials, not overall populations).

Immigration had a big split, but mostly because libertarians were 94% in favor of more immigration, and 86% opposed to a stupid wall. Conservatives were divided, nominally opposed to more immigration and in favor of a stupid wall. Another big gap existed over the NSA and defence cuts, and ground troops to fight ISIS.

And then there were these questions.

"Do you believe that identifying with a gender different from the gender assigned at birth is morally acceptable or morally wrong?

Conservatives: 64% wrong, 1% acceptable, 32% not a moral question
Libertarians: 13% wrong, 24% acceptable, 62% not a moral question

Recent killings of black men, including incidents in Minneapolis and Baton Rouge have sparked national protests of police treatment of black Americans that centered around the slogan #BlackLivesMatter. Do you support or oppose the goals of #BlackLivesMatter?

Conservatives: 21% support, 76% oppose
Libertarians: 64% support, 32% oppose

It is important for children to be brought up in a religion so they can learn good values

Conservatives: 88% agree, 8% disagree
Libertarians: 34% agree, 61% disagree

I am willing to give up some personal freedom and privacy for the sake of national security

Conservatives: 80% agree, 16% disagree
Libertarians: 24% agree, 70% disagree

Internet pornography is a public health crisis

Conservatives: 53% agree, 44% disagree
Libertarians: 10% agree, 84% disagree

The government needs to do more to combat the prescription painkiller addiction epidemic

Conservatives: 48% agree, 49% disagree
Libertarians: 25% agree, 70% disagree"

And these

"How concerned are you about the following issues?

Terrorism/national security

Conservatives: 89% very concerned
Libertarians: 29% very concerned

Abortion

Conservatives: 71% very concerned
Libertarians: 26% very concerned

Morality in society

Conservatives: 67% very concerned
Libertarians: 50% not concerned at all"

"Which of these best describes your religious preference?

Catholic

Conservatives 32%
Libertarians 8%

Evangelical

Conservatives: 32%
Libertarians: 6%

Non-religious

Conservatives: 3%
Libertarians: 40%"