I check all sites from the list, the result is the following : First and last site from the list are loaded quite normal (no blocking from adblock, av or other security software), and other sites are blocked by my browser (Firefox) as
Deceptive site ahead with the following warning :
electrumclient.org has been reported as a deceptive site. You can report a detection problem or ignore the risk and go to this unsafe site. Learn more about deceptive sites and phishing at
www.antiphishing.org. Learn more about Firefoxs Phishing and Malware Protection at support.mozilla.org.

Although the idea of blocking such sites in users host file is not bad, for most users it still represents a challenge. What we need to do is report such sites as phishing to
Google. In this way such sites will be blocked for every user, even those who are not aware of the problem will be protected.
It is also important to use adblocks for browsers, since most users use search engines to find Electrum site, and bad ones usually pops up at the top of the search list. The last line of defense is antivirus software which should be updated, and good AV will analyze any downloaded file and prevent the user from installing bad software.