Sam, when you provide some shred of evidence for an unbounded universe, I will make the effort to gather the abundant evidence that demonstates a boundary.
To date, no evidence of an unbounded state has shown itself. (and an unbounded expansion is illogical without evidence that it is possible Infinity is a logical and quantitative place keeper, not a reality. )
Are you saying that our galaxy is the actual, only and unique center of the universe?
To that end, each of us should begin by watching this little (4+ minute) video: "The most important image ever made -- The Hubble Ultra Deep Field"...
Please watch it (multiple times if need be) so that we can then proceed - using a common knowledge base...
Then, return here -- saying that you have watched it -- and we can have a fruitful discussion.