Travelling at the speed of light?[Question]

[Aoi Magi]

Destination star systems => A few thousand to millions of light years away
Travel time as light beam => A few thousand to millions of years

Result => Pointless wastage of time and resources

You're missing the zero in the equation. Projecting a consciousness (disregarding the whack for a second) results in a subjective time passage of zero seconds. It's one of the more "feasible" methods of potential colonization. 

As for wasting time and resources, I'd have to argue the "Gwynnite entropic conjecture" which states that such might be the whole purpose of intelligence. 

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I'd expand, however being my own religious nonsense doesn't make it less nonsense, at least not at present.

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Yep, the keyword being subjective. Something like a wormhole seems a lot more convenient and time efficient and safer, especially when dealing with those pesky asteroids.