Letting intolerant people speak is not evidence of your support for tolerance. That's what the Paradox of Tolerance shows. You have to be aggressively intolerant of intolerance. That's why that survey shows exactly the opposite of what you demonstrated. Intolerance of intolerance is evidence of support for tolerance. Since the right is tolerant of intolerance (which is what the survey shows) they are not for free speech. Also evidenced by them literally banning books that promote tolerance.
Let's consider the table in the article titled: "What percentage of college students would allow a controversial speaker on campus?" Since red and green are representative of majority intolerance and majority tolerance, respectively, I'll just refer to the colors to discuss the trends, which is the focus here.
With regards to the table, we'll exclude the "moderate" row for this discussion. We'll break the table into four quadrants: upper left or Q1 (left vs. right views), upper right or Q2 (left vs. left views), lower left or Q3 (right vs. right views), and lower right or Q4 (right vs. left views)
To determine what the survey is showing, we have four corner cases to consider: (1) the left is majority tolerant and the right is majority tolerant, (2) the left is majority tolerant and the right is majority intolerant, (3) the left is majority intolerant and the right is majority intolerant, and (4) the left is majority intolerant and the right is majority tolerant.
Case 1: the left is majority tolerant and the right is majority tolerant. If Case 1 is true, all four quadrants will be green. Since Q1 is red, this condition is not satisfied, therefore Case 1 is false.
Case 2: the left is majority tolerant and the right is majority intolerant. If Case 2 is true, Q4 will be red, and Q1 will be green. Since Q4 is green and Q1 is red, this condition is not satisfied, therefore Case 2 is false.
Case 3: the left is majority intolerant and the right is majority intolerant. If Case 3 is true, both Q1 and Q4 will be red. Since Q4 is not red, this condition is not satisfied, therefore Case 3 is false.
Case 4: the left is majority intolerant and the right is majority tolerant. If Case 3 is true, Q1 will be red, and Q4 will be green. Since Q1 is is in fact red and Q4 is in fact green, this condition is satisfied, therefore Case 4 is true.
Therefore, we can easily see that the left is majority intolerant and the right is majority tolerant.