Theland, our vicar reminds me of you in many ways. He's a bible thumper. He's the only person I've ever known who is totally oblivious to the fact that he might be upsetting people when he bangs on about sin, hell, and damnation at a funeral - and I tell him so! Some comfort to the bereaved! (Having said that, when he comes here to dinner leaving his vicar's hat at home (which is pretty much compulsory!), he's good company - and very funny).
You say the way to God is through Jesus Christ, but I say again, Jesus was a Jew, and if you truly followed his teaching instead of that of St Paul, you would convert to Judaism. Christianity wouldn't be an issue.
As for the steady decline in standards, I couldn't, and wouldn't express it as a lack of blessing from God. To say such amounts to off-loading your personal responsibility for your own life, and while you're thinking like that, you aren't looking at the problem squarely, nor with a rational eye. You're simply making excuses. You need to look in other directions to find the root of the problem, because, in truth, God doesn't come into it. If we have any sense, we all know right from wrong, and good from bad, and we choose our path in life. We are, in the main, the authors of our own misfortune - and of our own success.