Your analysis is superficial, to say the least.
1) You say that Republicans lost the race for control of the Senate, but made it close? It was already close! It was a 50/50 split going into the 2022 mid-term elections. The Democrats have a good chance of picking up a seat now, pending the runoff in Georgia. That is unheard of in a mid-term election year for the party which is not in power.
2) Republicans didn't just expect to win control of the House. It is fair to say that they expected to pick up a minimum of 15 seats. They will pick up less than 10 seats. It could be as few as 7. By comparison, Democrats picked up 40 seats during the 2018 mid-term election cycle.
3) Outside of New York (which Hochul won) you didn't mention the elections for Governor at all, and I don't blame you. In the swing states, the Democrats managed to hold their own with some surprisingly strong showings. To be fair, Republicans recorded big victories in Georgia (Kemp), Florida (DeSantis), Ohio (DeWine) and Nevada (Lombardo), but Democrats looked just as strong with wins in Pennsylvania (Shapiro), Michigan (Whitmer) and Wisconsin (Evers) ... with Arizona yet to be determined (Hobbs is currently showing a slight lead over Lake).
^^^ I'm not counting Texas and New York as "swing states", because they're not. ^^^
Finally, you are obviously trying to downplay the predictions of a "red wave" by claiming that these results were exactly what the right was expecting. That is not accurate. See the videos below ...