That's "equal to having" a web browser that you can use to log into your bank's web site. So no, you aren't being "your own bank." You got it very wrong; they don't need to "spend your money" when they can rewrite history so that you never had any. They don't need your private key in order to create fraudulent coin bases that debase the unit of account.

If we can have trusted places where we can download software without the fear of them being infected with viruses/malware then we can have trusted operators/nodes so that some users can use only a lightweight client without burdening them with a full node requirement. You sound like this is something impossible, but it's far from being impossible. What's the use of every user running a full node if they can't trust the place where they download the Bitcoin Core software?

There are many different providers of hosted files and some are trusted (Firefox, Google, Bitcoin.org etc) and some are untrusted. A random invented example would be www.OptimizeMyPC.com that promises to speed up your computer if you download their tool which is filled with malware/trojans.

We can have this with Bitcoin nodes too. This is just another business opportunity and this is very easily doable.

Again nothing constructive from your posts. Just the usual MP quotes and the usual and useless "limiting stuff is better". You have a very limited and pessimistic vision about this whole ecosystem.