Can we make chat login much smoother?

Question

Currently, when logging into chat, it takes a rather long process to get in. The global auth doesn't always seem to work, and I have to go through a ton of steps to get in:

First, I see this:

Then, I go to the login page, and get this:

I wait 20 seconds for something to happen, and it doesn't.

So, I click the "login" via SE button and reach here:

(obviously I'm logged in to some network site, but not on SE.com)

I use my openID, and am redirected here:

And I naturally click here:

Which takes me back here:

I click "login", and I am taken back here:

Which finally takes me here:

and logs me in:

There is generally another step involved after this -- I need to re-navigate back to where I started when I clicked "login". This is especially annoying

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There are a bunch of problems here which I think need fixing.

• The OpenID login form on SE.com is not respecting the returnurl. This would save us the unnecessary step of going back and forth trying to reach the chat login link.
• It would be nice if chat login had its own returnURL so that after logging in the system redirects me to the page where I clicked "login"
• The global authentication shouldn't be breaking in the first place, I guess. It has happened a lot when I am on a phone or behind a proxy, but happens when I'm on a normal connection as well.
• Why can't chat.SE have an openID login form hosted on the same site itself? Why the complexity?

Could some/all of this be fixed/improved?