Yes. 25% of U.S. citizens linguistically means 25% of all U.S. citizens. They don’t need to specify alive, because they had to be alive inorder to participate. It is not dishonest in this case because they (the original study) listed the date the survey was conducted and didn’t not try to portray an old study as modern.
How does pointing that out make me a fanboy? Interesting you chose to call names and denounce instead of being civil like @viking@infosec.pub. Why is that?