I have traveled widely in numerous English speaking countries and nowhere have I heard anybody pronounce that ‘d’. Today, countless millions of people all around the world are stuck with an extremely popular word that is disfigured by a useless and often confusing silent letter.
I suggest we drop it. Wensday, instead of Wednesday would do no damage to our linguistic heritage or affect our literary past. It would not produce another homograph or homophone or even a heteronym. It would make the phonics people happy and it would be accepted immediately by almost everybody. It would also bring a sigh of relief from countless schoolboys and foreign students world wide.
The next time you have to write that day of the week, spell it Wensday and see what happens. I’ll make a good guess that most people will not notice and the few that do will agree with you that Wensday is more aesthetically pleasing than Wednesday.