and
"Seems that Google is losing the battle against spammers."
These seem like contradictory statements to me. I think what you're saying is that these emails end up in the SPAM folder? Doesn't that mean the spam/phishing filters are working? Or am I reading that wrong?
Google's spam filters are one of the BIG reasons I stick with Google for my email. For my stuff, they work REALLY well. Very few false positives, and very few spam/phishing messages get through. Though looking at my spam folder looks very different than yours.