Like I said, it's up to the client, if they know whats on offer and it's what they want, thats their choice. I'm still learning to build sites properly for the reasons mentioned before, but I still stand by what I said. Theres no reason a site using a WYSIWYG builder can't be professional. Not everyone aims to get to the top of Google, and those that do pay, most never do anyway.
Personally, I'd be more than happy if someone used one of those leaflet/brochure template designer things...doesnt really make much difference as people still use Publisher etc. If they want personalised they'll go to a designer. As for websites, a graphic designer is still able to put together a decent site in a 'builder', even if the 'back end' isn't up to the standards of those that code. They're the only ones who really fuss about it.
Still, who knows, by the time my build skills have improved, I might be saying the same as you. :icon_biggrin:
Since graphic design/web is so subjective, despite all the fuss designers of each discipline make, levels of professionalism is a bit hard to measure I think. If people are willing to try and build themselves an extremely ugly template website in Wix and Co then there is clearly a market for those at the 'lower end' of the web spectrum.