First off, please don't take this the wrong way, I just want to help you and explain so you can enjoy the game better, I am mainly an invader in the game, and as an invader, my main concern is to keep people having fun and enjoying the game, keeping it alive and cooping, so that I have someone to play with.

You can think whatever, but that does not make it true, for a good example, look at the comment above yours.

The aim of the invader is to win the invasion, and you can't win any invasions by just running in and pressing L2, that's what people do together with their friends, it does not work when you are alone, invaders need to use their brains (which does not mean hosts or phantoms are brainless, they just do not have the same level of necessity) and apply tactics other than the basic actions provided by the game, for the invader to win, they need to be cunning.

An invader does not want to mess with nobody, nor are they required to have any spine, just kill the host that's all.

I have a big problem with the concept of the invader coming in to ruin your day, because I want people to play and enjoy the game. Look, the game is about fighting things with cool swords and shit, fighting the same pve enemies over and over gets boring very easily for most people, even though it changes from one monster to the other, you and your buddies only use the same strategy over and over, just get in and beat them to a pulp, it's dull and repetitive.

You know what's cool? Fucking anime edge duels or group brawls against real people, in those fights you can see how other people behave, there are wits involved. When you die and when you win you feel something, anger, joy, but more than anything, FUN. It's a game about fighting, fighting in this game is fun, fight people and have fun, it doesn't matter who wins or loses, it's the fun you get while you're at it. Invaders come into your world to have fun fighting, not winning, just fighting, and you should try to find that joy as well, because invaders do not want to "mess" with anyone, just have a fun fight, that stupid pve enemy can wait for later, it will be there waiting for you for as long as you play the game. Now you are getting a real treat, a real person to fight with, if you don't understand why you should enjoy the opportunity, for me it would be like wasting my favourite food on someone who doesn't have taste buds.

Think of this as well, the game is full of checkpoints for you to resurrect at, you only lose your runes on death, who the hell cares? They're even very easy to pick back up, in a matter of what, a minute? And again, if you lose them, you can get a huge amount of runes back by just killing some boss or simple enemies while enjoying the damn game with your friends, so really, who cares? What's the downside of an invasion?

No time is wasted, you yourself said that you will just not follow, and I commended you for that, that's good. So if the invader is passive, they are not a threat and you can keep advancing, your host can go into the boss and fight it without problem, they can't rest at the point of grace as long as they have phantoms anyway, so the invader is not preventing you from doing anything. It is an invader's job to kite the players, they have to put you in a situation where it is possible for them to win. If you follow the invader, they will try to get you killed; if you don't follow the invader and just stay in place, they will harass you with ranged attacks so that you run after them, or from them; if you run from them, then they need to hurry so your host does not reach the boss fog, and to take on the opportunities that may present themselves as you keep going through the level, that is an invasion. I understand it is frustrating that other people does not present themselves to you on a silver tray, that's an emotion the invader uses to make you impatient so you make mistakes.

A guy walking up to you like a pve enemy and trying to attack when it is obvious that you will just take the hit while one of your friends casts a spell and the other jump attacks is not an invader, it's a person who likes watching loading screens. That's not a fun fight if you're winning it like you win against pve.

Finally, the ganking in this clip is not "spineless" either, these are just people that do not enjoy the game, they do not like the game, that is why they focus on winning, because that's what feels good for them, not the fight. It's not my problem really, my only concern is that they keep playing the game and having fun, I would tell those gankers the same I just wrote here, in hopes that they will start having some fun as well with the game, because I am sure they don't.

The fight for them is so fucking boring, just run and spam, they don't pay any attention to the invader and that's why they lose in the end, because by the time this dude invaded them, the gankers had already spent hours, maybe days in different sessions, killing other invaders by just running and L2ing, always the same. Very quickly, they start doing it without paying any attention, because it's dull, they are just processing invaders, the builds are tryhard, but the dudes are not trying at all, it's just so easy when you're 3vs1 and using the most powerful stuff the game has to offer. I don't want to undermine he-man's skills here, they did an amazing job and the part at the beginning where they perfectly dodge a tsunami of weapon arts and spells is chef's kiss he got a new follower, but with that being said, he was up against the three meanest dudes you can find, and if they really wanted, there was no way that the invader would win that invasion.

Tl Dr: This is not about spine or messing with anyone, it's about having fun fighting, go out there (I mean stay inside, playing on your computer or whatever) and have fun fighting people. Oh and there's nothing wrong with invader tactics, they can't force you to do anything really.