The nords did reach out, and the Dunmer clearly stated they did not want to help. the reason they are being harassed by citizens is becasue they are in the middle of a war and the Dunmer are being nuetrals. So the general population dosent know what to expect of them, since they clearly said they were not for them BUT the population dosent know IF thye will join the enemy or be nuetral to the enemys as well, its the unknown factor they are bringing that unfortuantly brings thier miscomfort. The citizens do have a right to be afraid because sine they are not claiming ANY ties, they do not knwo what is what with them, its not black and white.
The old empire is superior to the independent skyrim, BUT this empire today is not the old empire. Its broken and has made to many mistakes and is asking everyone else to pay for thier mistakes. Besides the Empire isnt as "strong" as ur lead to believe, look at the whoel hammerfell incident, a general disobeyed the empire and left 500 invalids to continue the fighting and hammerfell got a stalemate and thier independence.
but also ask urself this, IF High Rock was the one rebelling would u still feel the same way seeing how the empire would only be smaller and not broke in half? Most of the naysayers on here are only going off the fact that Skyrim is smack dead in the empire, if high rock wasnt involved i highly doubt that most of the people on here would be pushing for the Empire, which after Independent Skyrim, i see High rock going for thier own indpendence anyway, or at least seaching an ally with hammerfell..scratch that IF they went independent i see them getting a ally with skyrim so basically the empire get smaller and can actually focus on its own lands and the other countrys rise up and make allys and make themselves stronger and the mepire gets smaller and a newer/stronger empire comes in and takes it place.
No, the nords in Windhelm did not reach out other than to make demands of the dunmer. There is nothing right about threatening to assault dunmer in their beds (read into that what you will) simply for refusing to die for a cause they have no reason to believe in. Talos is not their god and Talos's people are threatening them.
The Empire is not asking 'everyone else' to pay for their mistakes because until recently the Empire
was everywhere else. They did not
want to give up their land or their gods and as you point out, the Empire did not completely abandon Hammerfell. You mention one general, but the sacrifice was more than that as it was accepted and permitted. Let's not forget that Hammerfell was, at this point, fighting a weakened Thalmor, with tired armies who were ready to withdraw under the WGC. Perhaps the Empire as a whole
could have held out longer, perhaps not, but that's done now and it's not something the player can change.
If High Rock rebelled... well, they would at least get to choose their own fate regarding the Empire but ultimately, my reaction would depend on their reasons, their attitude towards potential allies and any procautions they might choose to take against the Thalmor.
And yes, a newer, stronger Empire is rising. Unfortunately, it is headed by the Thalmor.
Not in a feudal system. You support your Jarl and he will support you. Even dragonborn cant buy a house until he contributes. Is it any different in any city in Skyrim?
Yes. In most cities, the Jarls talk about protecting and serving their people. There are exceptions but generally, those exceptions are highlighted as corrupt (Silver-Blood, Black-Briar).