I think we should go further and when unvaxed children come down with preventable diseases, their parents should be charged with child neglect.

The federal laws passed in the mid-80s that insulate the responsibility of vaccine creating companies to flaws in their products needs to rescinded or heavily revised.

It is the fact that the companies creating these vaccines are largely not culpable for their products that has driven the anti-VAX movement. FIX THAT or this law will be ignored.

Would they find evidence of us?

Five million years is a pretty long time: everything on the surface would be eroded away, the seafloor would get covered in quite a bit of muck, any underground bunker would collapse. Overall I don't think there's be any reason for them to suspect that we were once here.

Matthew 25:31-46
New International Version (NIV)

31 “When the Son of Man comes in his glory, and all the angels with him, he will sit on his glorious throne. 32 All the nations will be gathered before him, and he will separate the people one from another as a shepherd separates the sheep from the goats. 33 He will put the sheep on his right and the goats on his left.

34 “Then the King will say to those on his right, ‘Come, you who are blessed by my Father; take your inheritance, the kingdom prepared for you since the creation of the world. 35 For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, I was a stranger and you invited me in, 36 I needed clothes and you clothed me, I was sick and you looked after me, I was in prison and you came to visit me.’

37 “Then the righteous will answer him, ‘Lord, when did we see you hungry and feed you, or thirsty and give you something to drink? 38 When did we see you a stranger and invite you in, or needing clothes and clothe you? 39 When did we see you sick or in prison and go to visit you?’

40 “The King will reply, ‘Truly I tell you, whatever you did for one of the least of these brothers and sisters of mine, you did for me.’

41 “Then he will say to those on his left, ‘Depart from me, you who are cursed, into the eternal fire prepared for the devil and his angels. 42 For I was hungry and you gave me nothing to eat, I was thirsty and you gave me nothing to drink, 43 I was a stranger and you did not invite me in, I needed clothes and you did not clothe me, I was sick and in prison and you did not look after me.’

44 “They also will answer, ‘Lord, when did we see you hungry or thirsty or a stranger or needing clothes or sick or in prison, and did not help you?’

45 “He will reply, ‘Truly I tell you, whatever you did not do for one of the least of these, you did not do for me.’

46 “Then they will go away to eternal punishment, but the righteous to eternal life.”

Also, it's perfectly OK (according to the Old Testament) for non-Jews to worship idols. In fact, the fact that this occurred is a basic premise of much of the Old Testament, and never are the non-Jews admonished for it.

However, in the rabbinic doctrine of the Noahide laws [the seven laws Judaism expects non-Jews to follow]–the Torah for all mankind so to speak–idolatry is as serious an offense for Gentiles as it is for Jews, although, in the nature of the case, this was purely academic. It was unlikely in the extreme in rabbinic times that a Gentile would ask a Rabbi whether or not he was allowed by the Torah to worship his gods.