I'm sort of inclined to not call this sort of nonsense street dawah 'dawah'. From my recollection Dawah was usually done by qualified/trained persons who actually knew something about Islam and had relatively good people skills and a list of guidelines on how to give dawah. I'm not bigging up traditional dawah artists like HuT but at least there was a process. This street dawah/yt dawah is just for banal idiots to run up to people, recite the only ayat of quran they know and then repeatedly scream 'why you not Muslim yet, bro'. It's like the difference between Simon Wisenthal and Dog the Bounty Hunter
OK I do see your point, but please show me ANYONE who is 'trained or qualified' in what God wants.
I put it to The Pope, vatican, Chief Rabbi or all the Islamic scholars put together that they may be experts on the books, but they have no more information nor are any more 'qualified' than I am regarding the nature of any proposed 'Creator'