YUP.
That's why Ted Cruz crushed Trump amongst evangelicals and conservatives in Iowa, but didn't in New Hampshire, which is one of the most liberal states in the country.
And that makes it ok to write them off in the general. Same as all of the Northeast and a lot of western states. It worked wonderfully in 2008 and 2012 didn’t it?
Trump dominated with "very conservative" and "conservative" voters in New Hampshire, whose numbers were actually up this year compared to the previous election. Trump dominated 35 percent to 23 percent for the 25 percent of "very conservative" voters. Trump dominated even more with those who only described themselves as conservative or slightly conservative. All in all, "conservative" voters represented nearly 70 percent of primary voters, and Trump dominated each category.
As for your, "they're not really conservatives!" Your assertion is stupid, because it means that the "very conservative" group, which was Cruz's only strong group, were all liberals voting for Cruz.