Using the sample to represent the population

Suppose that in a random sample of voters, 70% favor gun control. Is it okay to then say that 70% of the population favor gun control? Why or why not?

I think the answer is no, Because you only sampled some voters. What is the sample size? How did you get to that size? Where were the people living? What, exactly, was the question you asked them? You can say 70% of those people polled support your answer, but you can't say that represents 70% of the population as a whole. When you have an actual voting by actual voters in an actual election, then you can claim 70% of those casing votes, but still can't claim 70% of the whole. And for the record, it doesn't matter how much support you get in a poll, you don't get to poll away, or vote away, other people's rights. On the other hand, statistically yes assuming its a large enough sample and well randomized. The other element is the wording of the question. It would be propaganda 101 to ask the question in such a way to drive the answer desired. I'm confused could u help me with that? Thanks!