"Here's where feminism puts men in a double-bind: if you're a lonely man who is having little to no successes with women, it must be because you have toxic, misogynist views of women. But if you're a confident, outgoing man who has many successes with women, you're a player who only values women for sex."
Feminism is just about equality, nothing else.
Neither of the behaviors you described sound particularly healthy or like they are viewing women as equal individuals.
It's common for shy, socially awkward guys to have low self-esteem and to feel insecure, right?
Often, maybe without even realizing it, this insecurity can manifest as a tendency to criticize those close to them, bringing the woman's feeling of self-worth down to their level. After all, if she's confident, she might leave you for someone else.
I mean, if you don't feel confident, it's gonna be intimidating to deal with confident women, right?
I assume you've heard of negging?
In this situation, women are treated as something to be manipulated.
Flattered initially but them emotionally controlled for continued access.
The other behavior is also about manipulation. Women are viewed as conquests, something to gain access to, boast about and then be disposed of. Expendable.
There are guys who combine both of these, pick-up artists who are seemingly shy, socially awkward guys who seem considerate and 'nice' but who also view women as conquests.
Too insecure to believe that anyone would maintain a continued interest, they repeatedly date and ditch for that 'honeymoon' period that requires very little emotional effort.
Both of these behaviors are arguably toxic and are known to women so you can understand their reticence?
Like I already suggested, it's worth making an effort to meet new people, maybe through a shared interest, and seeing where things go.
Lots of relationships are based on shared interests, things that are typically nerdy are way more popular now than they were years ago.
Do you play video games? Do you larp?